Around 100 students were arrested across the US on Wednesday for taking part in on-campus Palestine solidarity demonstrations, as college administrations and state police seek to quash the movement that erupted after the start of the war on Gaza. Arrests at the University of Southern California and the University of Texas at Austin on Wednesday added to chaotic scenes in New York, where police were deployed to disperse a weeklong encampment at the city’s Columbia University. The movement has snowballed into a nationwide stand off between US college administrations and their students over the I…